# Si - English Unit Conversion Table

SI – English unit conversion table：
Pressure
Length
English to SI
SI to English
English to SI
SI to English
1 atm ＝101.325 kPa
1 MPa ＝ 9.87 atm
1 in ＝25.4 mm
1 cm ＝ 0.394 in
2
2
＝ 15.4 MPa
1 MPa ＝ 0.0647 ton/in
1 ft ＝30.5 cm
1 m ＝ 3.28 ft
1 ton/in
2
2
＝ 6.895 kPa
1 kPa ＝ 0.145 lbf/in
1 lbf/in
1 yd ＝0.914 m
1 m ＝ 1.09 yd
1 mile ＝1.61 km
1 km ＝ 0.621 mile
Velocity
Mass
English to SI
SI to English
English to SI
SI to English
1 miles/h ＝ 1.61 km/h
1 km/h ＝ 0.621 miles/h
1 oz ＝ 28.3 g
1 g ＝ 0.03527 oz
1 lb ＝ 454 g
1 kg ＝ 2.20 lb
1 ton ＝ 1.02 tonnet(t)
1 t ＝ 0.984 ton
Temperature
Area
English to SI
SI to English
English to SI
SI to English
2
2
2
2
＝ 6.45 cm
＝ 0.155 in
Fahrenheit(F) to Celsius(°C)
1 in
1 cm
°C = 5/9(F-32)
F ＝ 9/5C + 32
2
2
2
2
＝ 929 cm
＝ 10.8 ft
1 ft
1 m
1 ac ＝ 0.405 ha.
1 ha. ＝ 2.47 ac
Density
Volume
English to SI
SI to English
English to SI
SI to English
3
3
3
3
3
3
3
3
＝27.7 g/cm
1 lb/in
＝ 0.0283 m
＝ 35.3 ft
1 g/cm
= 0.031 lb/in
1 ft
1 m
3
3
3
3
＝ 1.33 t/m
3
3
1 bushel(bus) ＝0.0352 m
＝ 28.41 bus
1 ton/yd
1 t/m
= 0.752 ton/yd
1 m
Power
Volume (fluids)
English to SI
SI to English
English to SI
SI to English
1 hp ＝0.746 kWh
1 kW ＝1.34 hp
1 pint(pt) ＝ 473 ml
1 l ＝ 2.114 pt
1 gal ＝ 4.55 l
1 L ＝ 220 gal
Frequency
Force
English to SI
SI to English
English to SI
SI to English
1 1bf ＝ 4.45 N
1 N ＝ 0.225 lbf
1 cycle per second(c/s) ＝ 1 Hz
Angular Velocity
English to SI
SI to English